14 CFR · Part 23
14 CFR § 23.2145
Stability.
(a)
Airplanes not certified for aerobatics must—
(1)
Have static longitudinal, lateral, and directional stability in normal operations;
(2)
Have dynamic short period and Dutch roll stability in normal operations; and
(3)
Provide stable control force feedback throughout the operating envelope.
(b)
No airplane may exhibit any divergent longitudinal stability characteristic so unstable as to increase the pilot's workload or otherwise endanger the airplane and its occupants.
Reflects the eCFR edition current as of September 29, 2026. Retrieved from ecfr.gov on October 16, 2026.
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